Tennis star Serena Williams leaves the court after her second-round win against Bulgaria's Viktoriya Tomova at Wimbledon this year following the birth of her daughter (left) and (right) after defeating Yaroslava Shvedova of Kazakhstan at the US Open in 2016. Photos: AFP

Studies show babies can’t just suck away the extra kilograms of fat put on during pregnancy; diet, lifestyle and biological factors are all at play. Just ask Serena Williams, elite sportswoman and super healthy eater

Tennis star Serena Williams leaves the court after her second-round win against Bulgaria's Viktoriya Tomova at Wimbledon this year following the birth of her daughter (left) and (right) after defeating Yaroslava Shvedova of Kazakhstan at the US Open in 2016. Photos: AFP